Material working apparatus



July 7, 1942 c. DoRwElLER 2,289,252

MATERIAL WORKING APARATUS Filed Feb. 27, l1941 Sheets-Shet 1 @l We@ L vma/ 770/?/VEY July 7,1942.

C. DORWEILER MATERIAL WORKING APPARATUS Filed Feb. 27. 1941 2Sheets-Sheet 2 Patented July 7, 1942 MATERIAL WORKING APPARATUS CharlesDorweiler, Elmwood Park, Ill., assignor toy Western Electric Company,AIncorporated, New York, N. Y., a corporation of New York .ApplicationFebruary 27, 1941, Serial No. 380,757

14 Claims.

This invention relates to material working apparatus and moreparticularly to apparatus for removing blanked articles from sheetmaterial.

An objectl of this invention is to provide a simple, practical andecient apparatus for re-A moving blanked articles from sheet material.

In accordance with one embodiment of the invention, as used inconnection with a compound punch and die, there is provided an apparatusarranged between the punch and die and a takeup device for blanked stripmaterial, after the removal of `the articles therefrom, comprising ahousing enclosing means for supporting and guiding the blanked materialalong a path providing'a plurality of horizontally moving spacedparallel lengths of taut material. Mountedin the housing are a pluralityof independently ro tatable paddles or beaters extending laterally overan intermediate length of the taut material and each normally urgeddownwardly to engage the material by an associated spring. A conntinuously rotating shaft journaled in the housing has fixed thereto aplurality of cams, one for each paddle, each cam being arranged toperiodically engage the outer end of its associated paddle 'at diiferentintervals in the rotation of the shaft to rock the paddle upwardlyagainst the tension of its spring and upon'the lobes of the cam beingdisengaged from the end of the paddle to be drawn downwardly by thespring to strike or beat the upper face of the material. Thus, as theCil blanked strip material passes below the paddles,

it is repeatedly struck or vibrated by the paddles and the blankedarticles are projected therefrom. Means is provided for limiting thedownward movement of the paddles when no material is in position and forelevating the paddles to facilitate threading the blanked materialthrough the apparatus. Downwardly inclined plates below the length ofmaterial, which is vibrated by the pad dles, serves to direct theremoved articles out of the path of a length of material advancingtherebelow into a funnel-shaped bottom portion of the housing and into acontainer thereunder.

Other objects and advantages of this invenn tion will more fully appearfrom the following detailed description, taken in connection with theaccompanying drawings, in which:

Fig. l is a fragmentary front elevation of the apparatus embodying thefeatures of this invention as used in connection with a compound punchand die, a device for drawing the strip material through the punchanddie, and a takeup device for the material after the removal of thearticles therefrom, which are illustrated diagrammatically;

Fig. 2 is a'fragmentary enlarged end view of the apparatus taken on theline 2-2 of Fig. l;

Fig. 3 is an enlarged plan sectional view taken on the line 3-3 of Fig.4; and

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Fig. 4 is a vertical sectional view taken on the line 4 4 of Fig. 3.

Referringto the drawings, particularly to Fig. l, one embodiment of thisinvention is illustrated as used in connection with a compound blankingpunch and die, indicated at I0, which is operatively connected to apunch press frame I I and a reciprocatory ram I2 of the punch press,which is fragmentarily illustrated. Carried on the frame II is a set offeed rolls I3, by means of which blanked strip material, indicated atI4, is intermittently advanced from a supply in coil form (notshown) ina horizontal plane through the punch and die I il from right to left,yas shown in Fig, l. The scrap strip'material is taken up in coil formafter the articles have been removed from the blanked material I4 by thearticle removing apparatus of this invention, indicated generally by thenumeral I'I, by a suitable intermittently driven device I8. Since thecompound punch and die I0, feed rolls I3 and the take-up device I8 arewell-known in the art, a complete disclosure thereof is not believednecessary to a full understanding of the present invention. At thetermination of each advance movement of the strip material I 4 by thefeed rolls I3, the compound punch and die I0 is operated during anadvance and return movement of the ram I2 to vblank articles I9 (Figs. 3and 4) out of the material and reinsert the articles therein. After thearticles I94 have been reinserted in the material I4 and during thecontinued return movement of the ram I2, the feed rolls I3 and thetake-up device I8 are operated in timed relation to respectively advancethe blanked material and take -up thestrip scrap thereof emerging fromthe article removing apparatus Il.

The article removing apparatus I7, which is arranged between the feedrolls I3 and the takeup device IS, comprises a housing 2i) of angle ironand plate construction which includes a hinged top wall 2|, end walls 24and 25 and front and rear walls 26 and 21. The end wall 25 adjacent thefeed rolls I3 is formed with a suitably arranged slot 28 (Fig. 4) forthe entrance of the blanked material I4 from the feed rolls I3 into thehousing Ziand the end wall 24 adjacent the take-up device I8 is providedwith a hinged door 29. The opening in the end wall 24 closed by the door29 extends below the lower edge of the door to provide a slot 3| (Fig.2), when the door is closed during the operation of the apparatus, forthe emergency of the scrap strip material from the,` housing 2Il. In theupper portion of the front wall 26 is a framed shatter-proof glass plateor window 32 which is slidable upon opposite vertical slideways 33 (Fig.3) provided on the front wall. When the window 32 is in its upperposition during the operation of the apparatus a pivoted catch 34carried by the front wall 26 cooperates with a pin or handle 35 attachedto the frame of the window to hold the window in its raised position.The hinged top wall 2|, door 29 and sliding window 32 serve tofacilitate the threading of the strip blanlaed material I4 through theapparatus. Y

Extending between and secured to the inner faces of the end walls 24 and25 at the top of the housing 20 is a frame 36 of angle iron construction(Figs. 3 and 4) comprising horizontal and vertical spaced pairs ofsupporting members 31 and 33, respectively. Carried by the frame 36 arehorizontally arranged circular guide rolls 39, 49, 4I, and 42 over andaround which the blanked strip material I4 is advanced in passingthrough the housing 20. The diameter of the guide rolls 39 and 40 overand under which the material I4 with the articles I9 still carriedtherein travels is such that the articles will not be deformed duringtheir travel therepast, during which movement some of the articles maybe dislodged from the material.

It will be observed referring to Fig. 1 that the material I4, in itspassage through the housing 29 guided by the rolls 39, 49, 4I and 42,takes on an S formation and results in three parallel horizontal lengths45, 46 and 4'I of material. The upper length 45 of the advancingmaterial between the entrance slot 28 in the housing end wall 25 and theguide roll 39 is supported on a horizontal shelf 48 (Fig. 4) carried bythe frame 35. It will be observed that the intermediate length 46 cf thematerial is supported solely by the spaced guide rolls 40 and 4| and thelower length 4I of the material is drawn around the roll 42. Below thelength 41 of the material is a guide plate 49 attached to the frame 36upon which the material is supported during the threading of thematerial through the apparatus. By this arrangement of advancing thematerial through the apparatus the length 4G of the material from whichthe articles are removed is at all times held taut. Supported from theframe 36 between the lengths 46 and 41 of material is a downwardlyinclined plate 59 (Figs. 3 and 4) extending towards and spaced from therear housing wall 2'I. Attached to the inner face of the door 29 and tothe inner face of the end wall 24 are inclined plates 52 and 53 whichcooperate with the inclined plate 50 to receive and guide the articlesI9 as they are removed from the advancing blanked material I4 in amanner to be presently described.

Upon each end of the frame 36 (Figs. 3 and 4) are secured verticalplates 54 and extending therebetween is a fixed shaft 55 which isarranged parallel to and adjacent an edge of the intermediate length 46of blanked material I4. Independently rotatable upon the shaft 55 are aplurality of spaced paddle or beater supports 56. Rigidly secured to andextending from the inner end of each of the supports 56 is a rectangularshaped paddle or beater 6H of any suitable material. In the presentinstance, the paddles 69 are composed of hard phenol nbre board, thepaddles extending laterially over the taut length 46 of the material I4.An individual coiled tension spring 9| (Fig. 4) is attached at one endto each of the paddle supports 56, the opposite ends of the springsbeing secured to a rod 62 carried on the frame 36.

The action of the springs I is to normally urge or snap the paddles 69downwardly into engagement with the blanked material I4. In case nomaterial is passing through the apparatus, the

rnot engage the pins 63.

bottom surfaces of the paddle supports 56 engage pins 63 carried by arocker shaft 64 journaled in the plates 54, thus limiting the downwardmovement of the paddles. In the operation of the apparatus the paddlesupports 56 do Also journaled in the plates 54 adjacent the outer endsof the paddle supports 56 and parallel to the fixed shaft 55 is arotatable shaft 51 having fixed thereto a plurality of spaced cams 68,one for each paddle support. The cams 63 are spaced radially about theshaft 6'I at suitable points therearound with the result that cam lobes69 on each of the cams engage the outer ends of the paddle supports 56at different intervals during each rotation of the sam shaft. The camshaft 61, during operation of the apparatus, is continuously rotated ina counter-clockwise direction, as viewed in Fig. 4, by means of a motor'I0 and a speed reducer mechanism II mounted on a shelf 'I4 (Fig. 3)extending from the housing 23. A shaft I5 from the mechanism II drivesthe cam shaft 51 through pulleys I6 and 'I'I secured thereto,respectively, and a belt 'I8 interconnecting the pulleys.

In the operation of the article removing apparatus II the blanked stripmaterial I4 is intermittently advanced therethrough in the direction ofthe arrows (Fig. l) and as the counterclockwise rotating cam lobes 69are moved during each rotation of the shaft 61 and at differentintervals into engagement with the outer ends of the independentlyrotatable paddle supports 56, the paddles or beaters 69 are consequentlyrocked upwardly against the tension of the associated springs I5 I. Aseach cam lobe 69 is disengaged from the end of its associated paddlesupport 55, the cone nected spring 6I acts thereon to draw the paddle 69downwardly and it strikes or beats the upper face of the taut length 46of the blanked material I4 and the articles I9 are projected therefrom.Thus, as the taut length 46 of the blanked material I4 passes below thepaddles 69, it is repeatedly struck or vibrated by the paddles and theblanked articles I9 are knocked or removed therefrom.

The articles I9, projected from the blanked material I4 by the beatingaction of the paddles S9, fall onto the inclined plate 5l) and are thusprevented from dropping onto the bottom length of the material 4?. Itwill also be noted that any articles I9 which fall out of the blankedmaterial during the latters advance over and under the guide rolls 39and 49 will fall onto the inclined plates 52 and 53 carried on the innerface of the door 29 and the inner face of the end wall 24, respectively,and thus will be directed out of the path of the bottom length of thematerial 4l. The inclined plates 53, 52 and 53, which receive theremoved articles I9, direct them to a funnelshaped bottom portion B3 ofthe housing 29 and into a container 8I positioned thereunder.

In order to operate the rocker shaft 64 to cause the pins 63 carriedthereby to swing the paddle supports 56 and the paddles 60 upwardly tofacilitate the threading of the blanked material I4 through theapparatus, the following mechanism is provided: Attached to an end ofthe rocker shaft 64, which extends through the end wall 24 of thehousing 2D, is alever 82 (Fig. 2) to which is connected the upper end ofa link 83, which is connected at its lower end to a foot treadle B4pivoted at 65. A coiled tension spring 89 connected to the foot treadlenormally acts to hold the latter in an upper position in engagement witha stop surface B'I, in which position the rocker shaft pins 63 aremaintained out of position to limit the downward movement of the paddlesG, as shown in Fig. 4. By merely depressing and holding the foot treadle84 down, the paddles E will be swung upwardly and held there whilethreading the blanked material M through the apparatus.

While the invention has been disclosed and described with reference tothe removal of -lanked articles supported in blanked strip materialadvancing from a material working apparatus, such as a compound punchand die, it will be understood that it may be embodied in various formsand is capable of other applications limited only by the scope of theappended claims.

What is claimed is:

l. In an apparatus for removing blanked articles from sheet material,means for supporting the material, a plurality of blade-like paddles forengaging the material, and means for swinging said paddles in a to andfro movement into and out of engagement with the material to remove theblanked articles therefrom.

2. In an apparatus for removing blanked articles from strip material,means for supporting the material, a plurality of pivotally supportedpaddles for engaging the material, and means for alternately rockingsaid paddles away from the material and then snapping the samethereagainst to project the blanked articles therefrom.

3. In an apparatus for removing blanked articles from sheet material,means for supporting the material, and a plurality of individuallypivotally supported beaters for engaging the material, and means forindividually swinging said beaters into and out of engagement with thematerial for repeatedly beating the same to project the blanked articlestherefrom.

4. In an apparatus for removing blanked articles from sheet material,spaced members for supporting a horizontal length of the materialtherebetween, a plurality of pivotally supported paddles extendingacross and arranged to engage said length of material, and means forraising said paddles away from the material and then snapping the samethereagainst to project the blanked articles therefrom.

5. In an apparatus for removing blanked articles from strip material,means for holding the material taut, a plurality of pivotally supportedpaddles for engaging the material, and means for rocking said paddlesaway from the material and then snapping the same thereagainst toproject the blnnked articles therefrom.

6. In an apoaratus for removing blanked articles from blinked material,means for holding a length of the material taut, a plurality ofpivotally supported paddles for engaging said length of material, andmeans for swinging said paddles into and out of engagement therewith forbeating the same to project the blanked articles therefrom.

7. In an apparatus for removing blanked articles from blanked material,means for supporting the material, a plurality of pivotally supportedspring pulled paddles extending across and engageable with the material,and rotating cams for periodically engaging said paddles for rocking thesame away from the material and upon disengagement therefrom to permitthe paddles to spring against the material to project the blankedarticles therefrom.

8. In an apparatus for removing blanked articles from advancing blankedmaterial, means for holding a length of the material taut, a pluralityof pivotally supported paddles for engaging said length of material, andmeans for swinging said paddles into and out of engagement with thematerial for beating the same to project the blanked articles therefrom.

9. In an apparatus for removing blanked articles from advancing blankedmaterial, spaced members for supporting a length of the material tauttherebetween, a plurality of individually pivotally supported paddlesfor engaging said length of material, and means for individuallyswinging said paddles into and out of engagement therewith forrepeatedly beating the material toV project the blanked articlestherefrom.

lil. In an apparatus for removing blanked articles from advancingblanked material, a plurality of guide members for supporting andcausing the material in its advance to travel alternately forward andbackward to form spaced lengths of taut material, a plurality of paddlesfor engaging one of the lengths of material, and means for swinging saidpaddles into and out of engagement with said length of material forbeating the same to project the blanked articles therefrom.

1l. In an apparatus for removing blanked articles from blanked material,means for supporting the material, and a plurality of individuallypivotally supported paddles for engaging the material, stop means fornormally limiting the .movement of the paddles past the material,

means for actuating said stop means to rock the paddles simultaneouslyaway from the material, and means for individually swinging said paddlesinto and out of engagement with the material for repeatedly beating thesame to project the blanked articles therefrom.

12. In an apparatus for removing blanked articles from advancing blankedmaterial, means for holding a length of. the material taut, a pluralityof individually pivotally supported paddles for engaging said length ofmaterial, a rock shaft supporting stop members for normally limiting themovement of the paddles past the material, means for rocking said shaftto cause said stop members to swing the paddles simultaneously away fromthe material, and a rotating shaft carrying radially disposed camsarranged at dierent points therearound for periodically engaging saidpaddles for swinging the same into and out of engagement with saidlength of material for repeatedly beating the same to project theblanked articles therefrom.

13. In an apparatus for removing blanked articles from material, meansfor supporting the material, rigid means for paddling the material, andmeans for swinging said paddling means in a to and fro movement into andout of engagement with the material to remove the articles therefrom.

14. In an apparatus for removing blanked articles from advancing blankedmaterial, means for supporting and causing the material in its advanceto travel alternately forward and backward to form spaced lengths oftaut material, a plurality of paddles for engaging one of the lengths ofmaterial, means for swinging said paddles into and out of engagementwith said length of material to remove the blanked articles therefrom,and inclined guide means arranged between said one length of materialand an adjacent length of material and extending laterally thereof fordirecting the removed articles out of the path of said adjacent lengthof material.

CHARLES DORWEILER.

